1. Estimating Quotients

2. Compatible Numbers Estimate: 5,903 6 = 6,000 6= Estimate: 867 9= Numbers that are easy to compute mentally. 1,000 900 9 =100

3. Estimate 632 8 7,124 8 600 8 =80 7,200 8 = 900

4. Estimate 513 5 3,983 8 5005 =100 4,0008 =500

5. Estimate 12,143 6 23,983 6 12,000 6 =2,000 24,000 6 =400

6. Estimate 1. 712/7 700/7=100 2. 378/4 400/4=100 3. 553/5 550/5=110 4. 156/4 160/4=40 5. 8,089/8 8,000/8=1000 6. 6,899/7 7. 13,973/7 7,000/7=7,000 14,000/7=2,000

7. 51,989 2,000/5= 2,000 623,587 24,000/6=4,000 5 1,789 2,000/5=400 815,751 16,000/8= 400 3 32,598 33,000/3=11,000 7 13,641 14,000/2=2,000